誉帆科技：公司的主要业务包括排水管道的检测、非开挖修复与养护领域

Core Viewpoint - The company, Yufan Technology, is engaged in the fields of drainage pipeline inspection, non-excavation repair, and maintenance, utilizing various types of robots and has developed related technologies with 11 patents in robotics [1] Group 1 - The main business areas of the company include drainage pipeline inspection, non-excavation repair, and maintenance [1] - The company has self-developed technologies in these fields and holds 11 patents related to robotics [1] - It is important to note that the company does not currently manufacture or sell robots [1]